GradientPainter class

A painter that applies a gradient effect to another painter.

This painter creates a gradient effect with customizable colors, stops, and gradient type properties.

Inheritance

Constructors

GradientPainter({required ShapePainter basePainter, required List<Color> colors, List<double>? stops, GradientType gradientType = GradientType.linear, bool applyAfter = true})
Creates a gradient painter.
const

Properties

applyAfter bool
Whether the effect should be applied before or after the base painter. Defaults to true (after).
final
basePainter ShapePainter
The base painter to apply effects to.
final
colors List<Color>
The list of colors for the gradient.
final
gradientType GradientType
The type of gradient to apply.
final
hashCode int
The hash code for this object.
no setteroverride
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
semanticsBuilder SemanticsBuilderCallback?
Returns a function that builds semantic information for the picture drawn by this painter.
no setterinherited
stops List<double>?
The list of stops for the gradient. If null, colors are distributed evenly.
final

Methods

addListener(VoidCallback listener) → void
Register a closure to be notified when it is time to repaint.
inherited
hitTest(Offset position) bool?
Called whenever a hit test is being performed on an object that is using this custom paint delegate.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
paint(Canvas canvas, Size size) → void
Paints the shape on the given canvas.
override
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that the object notifies when it is time to repaint.
inherited
shouldRebuildSemantics(covariant CustomPainter oldDelegate) bool
Whether the painter should repaint when the painter instance changes.
inherited
shouldRepaint(covariant CustomPainter oldDelegate) bool
Whether the painter should repaint when the size changes.
inherited
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
override